Exhaust steam



(No Model.) 3 Sheets-Sheet 1.

F. L. MGGAHAN. APPARATUS FOR GONDENSING EXHAUST STEAM.

No. 493,733. Patented Mar. 21,1893.

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(No Mod-91.)

1?. L. MOG'AHAN. APPARATUS FOR OONDENSING EXHAUST STEAM.

No. 493,733. Patented Mar. 21, 1893.

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F6425 flaw/m wh /K9604 (No Model.) 3 Sheets-Sheet 3.

P. L. MGGAHAN. APPARATUS FOR GONDENSING EXHAUST STEAM. NO. 4933733.

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m: Noam; PETER NITED STATES PATENT OFFICE.

FRED L. MOGAHAN, OF INDIANAPOLIS, INDIANA.

APPARATUS FOR CONDEN SING EXHAUST-STEAM.

SPECIFICATION forming part of Letters Patent No. 493,733, dated March21, 1893.

Application filed December 14,1892. Serial No. 455,194. (No model.)

To all whom it may concern.-

Be it known that I, FRED L. MCGAHAN, a citizen of the United States,residing at In- 'diauapolisin the county of Marion and State inconnection with a steam engine and a series of condensing chambers,means whereby the exhaust steamfrom said engine shall be discharged intoeach of the several condensers of the series in regular succession, allas hereinafter fully set forth.

The accompanying drawings illustrate my invention.

Figure 1 represents a plan of the condensing apparatus and the engine.Fig. 2 represents an end elevation. Fig. 3 is a vertical section at aFig. 1. Fig. 4 is a transverse section on an enlarged scale at b Fig. 1.Fig. 5 is a partial side elevation of the engine and exhaust chamber.Fig. 6 is a central longitudinal section of one of the condensingchambers. Fig. 7 is a transverse section at -c Fig. 6.

In the drawings A and B represent a pair of steam-tight chambers,connected by a series of flattened tubes 0, and each having transversepartitions D, and E, whereby steam entering one of the chambers at oneend is forced to pass to the opposite chamber through tubes C, andthence backward and forward through said tubes until it has passed tothe opposite end of the opposite chamber.

Chambers A and B, and their connecting tubes 0, are mounted in tank F,through which is established a current of cold water which passes intothe bottom of the tank through a supply pipe l-I. Tank F is providedwith transverse partitions I, and J, and said partitions are so arrangedthat the water entering through pipe H fills one end of the tank andpasses over partition I, thence under partition J, and out through thedischarge pipe K.

The chambers A and B are each provided at one end with a pipe L, throughwhich the condense-Water collecting in the chamber is discharged into acentral pipe 4. A series of condensers thus formed is arranged in pairson opposite sides of an inclosed chamber M, with which connection ismade through branch pipes N. The water supply pipes H of all of thetanks F are connected with a central supply pipe 0, and all of thedischarge pipes K are similarly connected with a central discharge pipeP. Each of the branch pipes N, is provided, within the steam chamber M,with a trip-valve R, which is operated by means of a tappet S, securedto a shaft T, which is mounted in suitable bearings and extends theentire length of the chamber, projecting through the end thereof nextthe engine U. Mounted upon the projecting end of shaft T, is a'ratchetwheel V. Motion is imparted to ratchet-wheel V and shaft T, at eachmovement of the slide-valve-stem IV, by means of a sliding pawl X. thebell-crank lever Y, connecting-rod Z, and lever l. A tappet S isprovided for each of the trip-valves R- and their arrangement on shaft Tis such that the valves are tripped in succession, commencing with thatnearest the engine. The exhaust steam passes from the engine intochamber M, through the exhaust pipe 2.

Steam chamber M is provided with a safety valve 3, and each of the steamchambers E, is provided with a similar valve.

In operation, the exhaust-steam passing from the engine fills chamber M.At each forward and backward movement of the slidevalve-stem on theengine, shaft T is turned, thus opening one of the trip-valves R andallowing the exhaust-steam to pass from chamber M into one of thecondensers. At the next stroke of the engine, steam is admitted to thenext of the series of condensers and so on continuously. By this means,the steam entering either of the series of condensers is entirelycondensed, under ordinary circumstances, before another charge isadmitted. The condense-water flows through the pipes L, and 4, to asuitable reservoir where it is collected for ice making or otherpurposes.

I claim as my invention 1. In an apparatus for condensing steam, thecombination of a series of steam condensers, a steam chamber havingbranch pipes extending to each of said condensers, a tripvalve mountedat the entrance of each branchpipe,a revoluble shaft, intermediateconnecting mechanism connecting said shaft and said intermediateconnecting mechanism connecttrip-valves whereby the valves aresuccessing a regularly moving part of the engine, as ively opened by therevolution of the shaft, the valve-stem, and said trip-valves, wherebyand means for revolving the shaft. said valves are operated insuccession at each 5 2. In an apparatus for condensing exhaustsuccessive stroke of the engine, substantially I steam from asteam-engine, the combination as set forth.

of a series of steamcondensers, the steam- FRED L. MOGAHAN. chamberhaving branch pipes extending to Witnesses: each of said condensers, thetrip-valves mount- H. P. 1-1001),

:0 ed at the entrance of said branch pipes, and A. M. HOOD.

